Climatological Report (Daily)
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557
CDUS45 KRIW 130736
CLIGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT MON OCT 13 2025

...................................

...THE GREYBULL WY CLIMATE SUMMARY FOR OCTOBER 12 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         56   4:36 PM  77    2024  62     -6       77
  MINIMUM         37  11:39 PM  18    2009  35      2       46
  AVERAGE         47                        48     -1       62

PRECIPITATION (IN)
  YESTERDAY        T             0.12 2021   0.03  -0.03     0.00
  MONTH TO DATE    1.14                      0.33   0.81     0.00
  SINCE SEP 1      1.79                      1.16   0.63     0.38
  SINCE JAN 1      5.99                      4.98   1.01     5.69

DEGREE DAYS
 HEATING
  YESTERDAY       18                        17      1        3
  MONTH TO DATE  125                       169    -44       75
  SINCE SEP 1    186                       338   -152      145
  SINCE JUL 1    186                       357   -171      158

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        2
  SINCE SEP 1     50                        46      4       91
  SINCE JAN 1    791                       742     49      832
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    38   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     6.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86          11:00 PM
 LOWEST     41           4:00 PM
 AVERAGE    64

..........................................................


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        78      2015
 MINIMUM TEMPERATURE (F)   35        21      2002


SUNRISE AND SUNSET
OCTOBER 13 2025.......SUNRISE   7:25 AM MDT   SUNSET   6:31 PM MDT
OCTOBER 14 2025.......SUNRISE   7:27 AM MDT   SUNSET   6:29 PM MDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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